How can the same syntax work in one PHP file (main.php) but not in another (home.php) when using session variables?

The issue may be due to the session not being started or properly initialized in the home.php file. To solve this, make sure to start the session at the beginning of the home.php file using session_start() function. This will ensure that session variables can be accessed and used throughout the file. 

// home.php

// Start the session
session_start();

// Now you can access session variables
echo $_SESSION['username'];

Keywords

session variables PHP file syntax main.php home.php

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